There are two players left after the river card has been delt. Player 1 bets and player 2 calls. Does player 1 HAVE to show his cards, since it's HIS turn and he got CALLED, or is he allowed to muck his hand ?
I always thought he had to show and that it was only the second player, or remaining players, that are allowed to choose either to show or muck.
This is regarding a home play Texas Holdem cash game.